Carin, A. A. (1997). Teaching science through discovery (8th ed.). Merrill.
Lua i Stíl Chicago (17ú heag.)Carin, Arthur A. Teaching Science Through Discovery. 8th ed. Upper Saddle River, N.J: Merrill, 1997.
Lua MLA (9ú heag.)Carin, Arthur A. Teaching Science Through Discovery. 8th ed. Merrill, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.